Blue smoke out of exhaust ??
#1
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Hello all, I noticed that sometimes when my car idles for a few minutes and I pull off a little bit of smoke comes out, it goes away almost immediately when I drive hard any other time its not there either. I have a SES light for an 02 sensor that's abt it though and ticking lifters. Any input is appreciated thanks
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#2
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It's oil being sucked into the combustion chamber. Blue smoke just off idle is usually a sign of bad valve stem seals. Not a cheap fix clearly, but if it's not bad you can probably just leave it alone for a while. Someone else have any ideas - clogged PCV?
How many miles on the car?
How many miles on the car?
#4
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Yep, unfortunately, blue smoke out of the tail pipe always indicates oil is being burned. Not a lot you can do about it without a big expense, usually means the engine needs a rebuild. Sorry Bro
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#5
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There are other causes with BMW engines other than the valve guide seals. The #1 cause of oil burning is the crankcase ventilation valves. The V-8 has two - one on each valve cover. Inspect and/or replace the ventilation valve diaphrams before you do anything else.
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Check that the oil level is not too high. Also make sure the cranked case breather is clean and no issues. other wise i would pull the plugs to see which cylinders are using oil.
#7
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Thanks for all the replies, oil is @ a moderate level, just had my plugs changed in Sept of 09. All these parts you guys have named arent expensive, is it the labor that will kill me ?
#8
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What exactly should I be lookin for?